day 1 awk solution

day01/sol.sh

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+# solve day 1 with awk and sort
+
+# part 1
+awk 'BEGIN{RS="\n\n";m=0} {t=0; for(i=1;i<=NF;i++)t+=$i; if(m<t)m=t} END{print m}' < input
+
+# part 2
+awk 'BEGIN{RS="\n\n"} {t=0; for(i=1;i<=NF;i++)t+=$i; print t}' < input | sort -nr |
+awk 'BEGIN{t=0} {t+=$1} NR==3 {print t; quit}'